SIM900 GSM/GPRS Module | Quad-Band Wireless Communication Module

Description The SIM900 GSM/GPRS Module is a versatile wireless communication solution designed for GSM voice, SMS, and GPRS data applications. Supporting quad-band GSM (850/900/1800/1900 MHz), it works across multiple regions worldwide. Controlled via standard AT commands, the module integrates a SIM card holder, UART serial interface, and SMA antenna connector, making it ideal for IoT, remote monitoring, and embedded communication projects. KEY FEATURES • Quad-Band GSM/GPRS: Works on 850 / 900 / 1800 / 1900 MHz networks• AT Command Control: Standard AT commands for calls, SMS, and data• Built-in SIM Holder: Supports standard SIM cards• Low Power Sleep Mode: Typical 1.5 mA consumption in sleep• GPRS Data Support: Multi-slot Class 10 (default)• External Antenna Support: SMA connector for improved signal strength• UART Interface: Easy integration with microcontrollers SPECIFICATIONS • Product Type: GSM/GPRS Communication Module• Model: SIM900 / SIM900A• Frequency Bands: GSM 850, EGSM 900, DCS 1800, PCS 1900• GSM Class: Small MS• GPRS Class: Multi-slot Class 10 (default), Class 8 (optional)• Transmitting Power:– Class 4 (2W) @ EGSM 900– Class 1 (1W) @ DCS 1800• Control Method: Standard AT Commands• Interface: UART Serial (up to 115200 bps)• SIM Interface: Standard SIM Card Holder• Supply Voltage (Module): 3.4V – 4.5V• Input Voltage (Board): 5V – 12V DC• Power Consumption:– Sleep Mode: ~1.5 mA– Idle Mode: ~10 mA• Operating Temperature: –30°C to 80°C• Storage Temperature: –5°C to 90°C BENEFITS • �� Worldwide Compatibility: Quad-band support enables global use• �� Reliable Communication: Stable GSM voice, SMS, and GPRS data• �� Low Power Design: Ideal for battery-powered applications• �� Microcontroller Friendly: Simple UART AT command interface• �� Internet Ready: Built-in TCP/IP stack for GPRS connectivity �� PACKAGE INCLUDES • SIM900 GSM/GPRS Module: 1 Unit